openlayers
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Build tools and sources for developing OpenLayers based mapping applications
290 lines (262 loc) • 11.8 kB
JavaScript
goog.provide('ol.test.source.TileWMS');
goog.require('ol.ImageTile');
goog.require('ol.proj');
goog.require('ol.source.TileWMS');
goog.require('ol.tilegrid');
goog.require('ol.tilegrid.TileGrid');
describe('ol.source.TileWMS', function() {
var options;
beforeEach(function() {
options = {
params: {
'LAYERS': 'layer'
},
url: 'http://example.com/wms'
};
});
describe('constructor', function() {
it('can be constructed without url or urls params', function() {
var source = new ol.source.TileWMS({
projection: 'EPSG:3857',
tileGrid: ol.tilegrid.createXYZ({maxZoom: 6})
});
expect(source).to.be.an(ol.source.TileWMS);
});
});
describe('#getTile', function() {
it('returns a tile with the expected URL', function() {
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -7, 1, ol.proj.get('EPSG:3857'));
expect(tile).to.be.an(ol.ImageTile);
var uri = new URL(tile.src_);
expect(uri.protocol).to.be('http:');
expect(uri.hostname).to.be('example.com');
expect(uri.pathname).to.be('/wms');
var queryData = uri.searchParams;
var bbox = queryData.get('BBOX').split(',').map(parseFloat);
expect(bbox[0]).roughlyEqual(-10018754.171394622, 1e-9);
expect(bbox[1]).roughlyEqual(-15028131.257091936, 1e-9);
expect(bbox[2]).roughlyEqual(-5009377.085697311, 1e-9);
expect(bbox[3]).roughlyEqual(-10018754.171394624, 1e-9);
expect(queryData.get('CRS')).to.be('EPSG:3857');
expect(queryData.get('FORMAT')).to.be('image/png');
expect(queryData.get('HEIGHT')).to.be('256');
expect(queryData.get('LAYERS')).to.be('layer');
expect(queryData.get('REQUEST')).to.be('GetMap');
expect(queryData.get('SERVICE')).to.be('WMS');
expect(queryData.get('SRS')).to.be(null);
expect(queryData.get('STYLES')).to.be('');
expect(queryData.get('TRANSPARENT')).to.be('true');
expect(queryData.get('VERSION')).to.be('1.3.0');
expect(queryData.get('WIDTH')).to.be('256');
expect(uri.hash.replace('#', '')).to.be.empty();
});
it('returns a larger tile when a gutter is specified', function() {
options.gutter = 16;
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -7, 1, ol.proj.get('EPSG:3857'));
expect(tile).to.be.an(ol.ImageTile);
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
var bbox = queryData.get('BBOX').split(',');
var expected = [-10331840.239250705, -15341217.324948018,
-4696291.017841229, -9705668.103538541];
for (var i = 0, ii = bbox.length; i < ii; ++i) {
expect(parseFloat(bbox[i])).to.roughlyEqual(expected[i], 1e-9);
}
expect(queryData.get('HEIGHT')).to.be('288');
expect(queryData.get('WIDTH')).to.be('288');
});
it('sets the SRS query value instead of CRS if version < 1.3', function() {
options.params.VERSION = '1.2';
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -3, 1, ol.proj.get('EPSG:4326'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('CRS')).to.be(null);
expect(queryData.get('SRS')).to.be('EPSG:4326');
});
it('allows various parameters to be overridden', function() {
options.params.FORMAT = 'image/jpeg';
options.params.TRANSPARENT = false;
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -3, 1, ol.proj.get('EPSG:4326'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('FORMAT')).to.be('image/jpeg');
expect(queryData.get('TRANSPARENT')).to.be('false');
});
it('does not add a STYLES= option if one is specified', function() {
options.params.STYLES = 'foo';
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -3, 1, ol.proj.get('EPSG:4326'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('STYLES')).to.be('foo');
});
it('changes the BBOX order for EN axis orientations', function() {
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -3, 1, ol.proj.get('EPSG:4326'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('BBOX')).to.be('-45,-90,0,-45');
});
it('uses EN BBOX order if version < 1.3', function() {
options.params.VERSION = '1.1.0';
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -3, 1, ol.proj.get('CRS:84'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('BBOX')).to.be('-90,-45,-45,0');
});
it('sets FORMAT_OPTIONS when the server is GeoServer', function() {
options.serverType = 'geoserver';
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -3, 2, ol.proj.get('CRS:84'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('FORMAT_OPTIONS')).to.be('dpi:180');
});
it('extends FORMAT_OPTIONS if it is already present', function() {
options.serverType = 'geoserver';
var source = new ol.source.TileWMS(options);
options.params.FORMAT_OPTIONS = 'param1:value1';
var tile = source.getTile(3, 2, -3, 2, ol.proj.get('CRS:84'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('FORMAT_OPTIONS')).to.be('param1:value1;dpi:180');
});
it('rounds FORMAT_OPTIONS to an integer when the server is GeoServer',
function() {
options.serverType = 'geoserver';
var source = new ol.source.TileWMS(options);
var tile = source.getTile(3, 2, -3, 1.325, ol.proj.get('CRS:84'));
var uri = new URL(tile.src_);
var queryData = uri.searchParams;
expect(queryData.get('FORMAT_OPTIONS')).to.be('dpi:119');
});
});
describe('#tileUrlFunction', function() {
it('returns a tile if it is contained within layers extent', function() {
options.extent = [-80, -40, -50, -10];
var source = new ol.source.TileWMS(options);
var tileCoord = [3, 2, -3];
var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326'));
var uri = new URL(url);
var queryData = uri.searchParams;
expect(queryData.get('BBOX')).to.be('-45,-90,0,-45');
});
it('returns a tile if it intersects layers extent', function() {
options.extent = [-80, -40, -40, -10];
var source = new ol.source.TileWMS(options);
var tileCoord = [3, 3, -3];
var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326'));
var uri = new URL(url);
var queryData = uri.searchParams;
expect(queryData.get('BBOX')).to.be('-45,-45,0,0');
});
it('works with non-square tiles', function() {
options.tileGrid = new ol.tilegrid.TileGrid({
tileSize: [640, 320],
resolutions: [1.40625, 0.703125, 0.3515625, 0.17578125],
origin: [-180, -90]
});
var source = new ol.source.TileWMS(options);
var tileCoord = [3, 3, -3];
var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326'));
var uri = new URL(url);
var queryData = uri.searchParams;
expect(queryData.get('WIDTH')).to.be('640');
expect(queryData.get('HEIGHT')).to.be('320');
});
});
describe('#getGetFeatureInfo', function() {
it('returns the expected GetFeatureInfo URL', function() {
var source = new ol.source.TileWMS(options);
source.pixelRatio_ = 1;
var url = source.getGetFeatureInfoUrl(
[-7000000, -12000000],
19567.87924100512, ol.proj.get('EPSG:3857'),
{INFO_FORMAT: 'text/plain'});
var uri = new URL(url);
expect(uri.protocol).to.be('http:');
expect(uri.hostname).to.be('example.com');
expect(uri.pathname).to.be('/wms');
var queryData = uri.searchParams;
var bbox = queryData.get('BBOX').split(',').map(parseFloat);
expect(bbox[0]).roughlyEqual(-10018754.171394622, 1e-9);
expect(bbox[1]).roughlyEqual(-15028131.257091936, 1e-9);
expect(bbox[2]).roughlyEqual(-5009377.085697311, 1e-9);
expect(bbox[3]).roughlyEqual(-10018754.171394624, 1e-9);
expect(queryData.get('CRS')).to.be('EPSG:3857');
expect(queryData.get('FORMAT')).to.be('image/png');
expect(queryData.get('HEIGHT')).to.be('256');
expect(queryData.get('I')).to.be('154');
expect(queryData.get('J')).to.be('101');
expect(queryData.get('LAYERS')).to.be('layer');
expect(queryData.get('QUERY_LAYERS')).to.be('layer');
expect(queryData.get('REQUEST')).to.be('GetFeatureInfo');
expect(queryData.get('SERVICE')).to.be('WMS');
expect(queryData.get('SRS')).to.be(null);
expect(queryData.get('STYLES')).to.be('');
expect(queryData.get('TRANSPARENT')).to.be('true');
expect(queryData.get('VERSION')).to.be('1.3.0');
expect(queryData.get('WIDTH')).to.be('256');
expect(uri.hash.replace('#', '')).to.be.empty();
});
it('sets the QUERY_LAYERS param as expected', function() {
var source = new ol.source.TileWMS(options);
source.pixelRatio_ = 1;
var url = source.getGetFeatureInfoUrl(
[-7000000, -12000000],
19567.87924100512, ol.proj.get('EPSG:3857'),
{INFO_FORMAT: 'text/plain', QUERY_LAYERS: 'foo,bar'});
var uri = new URL(url);
expect(uri.protocol).to.be('http:');
expect(uri.hostname).to.be('example.com');
expect(uri.pathname).to.be('/wms');
var queryData = uri.searchParams;
var bbox = queryData.get('BBOX').split(',').map(parseFloat);
expect(bbox[0]).roughlyEqual(-10018754.171394622, 1e-9);
expect(bbox[1]).roughlyEqual(-15028131.257091936, 1e-9);
expect(bbox[2]).roughlyEqual(-5009377.085697311, 1e-9);
expect(bbox[3]).roughlyEqual(-10018754.171394624, 1e-9);
expect(queryData.get('CRS')).to.be('EPSG:3857');
expect(queryData.get('FORMAT')).to.be('image/png');
expect(queryData.get('HEIGHT')).to.be('256');
expect(queryData.get('I')).to.be('154');
expect(queryData.get('J')).to.be('101');
expect(queryData.get('LAYERS')).to.be('layer');
expect(queryData.get('QUERY_LAYERS')).to.be('foo,bar');
expect(queryData.get('REQUEST')).to.be('GetFeatureInfo');
expect(queryData.get('SERVICE')).to.be('WMS');
expect(queryData.get('SRS')).to.be(null);
expect(queryData.get('STYLES')).to.be('');
expect(queryData.get('TRANSPARENT')).to.be('true');
expect(queryData.get('VERSION')).to.be('1.3.0');
expect(queryData.get('WIDTH')).to.be('256');
expect(uri.hash.replace('#', '')).to.be.empty();
});
});
describe('#setUrl()', function() {
it('sets the correct url', function() {
var source = new ol.source.TileWMS(options);
var url = 'http://foo/';
source.setUrl(url);
var tileUrl = source.tileUrlFunction([0, 0, 0], 1, ol.proj.get('EPSG:4326'));
expect(tileUrl.indexOf(url)).to.be(0);
});
});
describe('#setUrls()', function() {
it ('resets coordKeyPrefix_', function() {
var urls = ['u1', 'u2'];
var source1 = new ol.source.TileWMS({
urls: urls
});
var source2 = new ol.source.TileWMS({});
expect(source2.coordKeyPrefix_).to.be.empty();
source2.setUrls(urls);
expect(source2.coordKeyPrefix_).to.equal(source1.coordKeyPrefix_);
});
});
});